CN203434840U - Single-cryostat fully-superconducting linear motor - Google Patents
Single-cryostat fully-superconducting linear motor Download PDFInfo
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- CN203434840U CN203434840U CN201320253875.3U CN201320253875U CN203434840U CN 203434840 U CN203434840 U CN 203434840U CN 201320253875 U CN201320253875 U CN 201320253875U CN 203434840 U CN203434840 U CN 203434840U
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Abstract
The utility model provides a single-cryostat fully-superconducting linear motor. The single-cryostat fully-superconducting linear motor is suitable for rail traffic and electromagnetic launch systems. The fully-superconducting linear motor is of a doubly-salient structure and comprises a salient short rotor and a salient long stator; windings are only distributed on the short rotor or on the long stator; the windings are made of high-temperature superconducting materials and include armature windings and excitation windings; each armature winding is composed of three phases; and constant excitation current is communicated in the excitation windings; since the high-temperature superconducting windings are of runway structures, the teeth of the short rotor or the long stator are designed to be structures shaped like a Chinese character ''ou'', such that the installation of the armature windings and the excitation windings can be realized; and each tooth shaped like a Chinese character ''ou'' is provided with two sets of excitation windings therein, such that the magnetic flow in the armature windings can be switched. According to the single-cryostat fully-superconducting linear motor, only one single cryostat is required, and therefore, the manufacturing cost of the fully-superconducting linear motor can be decreased, and a broad prospect is ushered for the application of the high-temperature superconducting windings to the rail traffic and electromagnetic launch systems.
Description
Technical field
The technical field such as the utility model relates to electrician, motor, track traffic, launch, refers in particular to a kind of complete super linear electric motors of single cryostat.
Background technology
In recent years, linear electric motors are widely used in the fields such as track traffic, electromagnetic launch.Existing linear electric motors comprise induction machine, magneto and superconducting linear motor.Because the winding of superconducting motor is comprised of superconductor, the current density of such motor is much higher than take the conventional motors that copper is material, and the zero resistance characteristic of high temperature superconducting materia reduces the copper loss of winding greatly, improved the power density of motor.Meanwhile, along with the critical temperature of superconductor steadily improves, the cost of high-temperature superconducting motor also, declining, makes to manufacture high-temperature superconducting motor and becomes a reality.
In existing high-temperature superconducting motor, mainly apply two large characteristics of superconductor, be respectively Meisser effect and zero resistance effect.Wherein the Meisser effect of superconduction makes the superconducting block of being made by superconductor that high magnetic energy density can be provided.But magnetizing of the superconducting block of high magnetic energy density must adopt superconducting coil to realize.Application than superconducting block in motor, superconduction winding has more popularity.In document " Development of a 15 kW motor with a fixed YBCO superconducting field winding ", (published in 2007
iEEE Transactions on Applied Superconductivity17 volumes, 2 phases, 1607-1610 page), manufactured a kind of superconducting motor that racetrack high-temperature superconductor winding is DC excitation winding that utilizes.For power density and the torque density of further lifting motor, at document " Feasibility study on a 400 kW-3600 rpm REBCO fully superconducting motor ", (published in 2012
iEEE Transactions on Applied Superconductivity22 volumes, 3 phases, 5201204-1-4 page) in complete super motor has been proposed, the winding on rotor is high temperature superconducting materia and makes, but the cryostat of epitrochanterian rotation high-temperature superconductor winding has increased the manufacturing cost of motor.At document " Electrical properties analysis and test result of windings for a fully superconducting 10 HP homopolar motor ", (published in 2012
iEEE Transactions on Applied Superconductivity22 volumes, 3 phases, 5201405-1-4 page) in a kind of complete super motor has been proposed.In this motor, adopt homopolarity rotor, the high-temperature superconductor winding of excitation is not rotated, reduced manufacturing cost.But the superconduction winding of this complete super motor is distributed in respectively on stator and rotor, must adopt two cover cooling devices to carry out cooling to exchanging armature and DC excitation superconduction winding.
Summary of the invention
The purpose of this utility model is for overcoming the deficiency of complete super motor in above-mentioned prior art, proposes the complete super linear electric motors of a kind of the single cryostat of need.
The technical solution adopted in the utility model is:
Cryostat is super linear electric motors entirely, comprise short mover and long stator, winding and a cryostat of salient pole, and winding is only distributed on short mover or is only distributed on long stator; Described winding comprises armature winding and excitation winding, all adopts high temperature superconducting materia; Described armature winding, by three phase compositions, passes into constant exciting current in described excitation winding; Described cryostat is only wrapped in short mover motion thereupon, or is only wrapped in long stator.
Described winding is racetrack, and the material using is y ba cu o compound, Bi-2223 or other high temperature superconducting materia.
Further, in order to make to exchange armature winding and DC excitation winding can both be arranged on short mover or long stator, short mover in super linear electric motors or the tooth of long stator are processed to " recessed " font entirely for these.Double-deck high-temperature superconductor excitation winding is installed on the tooth of " recessed " font; A set of armature winding is installed in adjacent slot, and armature winding adopts centralized configuration.
Further, to pass into the sense of current consistent for the DC excitation winding on the tooth of " recessed " font.Under the exciting current of which, the magnetic flux exchanging in armature winding can carry out positive and negative switching.
The utlity model has following effect:
1, Structure of mover of the present utility model and stator structure are double-salient-pole structure, and electric machine structure is simply easy to processing.
2, the utility model takes full advantage of the architectural feature of racetrack high-temperature superconductor winding, be placed on the interchange armature winding of mover or stator slot the inside and be placed on double-deck DC excitation winding on the tooth of " recessed " font and formed three layers of winding construction, take full advantage of the slot space of mover.
3, the DC excitation winding on the tooth of " recessed " font passes into after correct exciting current, and the magnetic flux exchanging in armature winding can produce positive and negative exchange, is easy to realize the back-emf sineization of such complete super motor, reduces harmonic wave, torque pulsation inhibited.
4, exchange armature winding and DC excitation superconduction winding and be all arranged on mover or stator, like this as long as a cryostat just can be realized this low-temperature characteristics of the superconductor of super linear electric motors entirely.As in track traffic, short Structure of mover can be arranged on passenger vehicle, and the passenger vehicle in can guaranteeing this cryostat and travel is like this relative static, has so just avoided the motion of cryostat.
Accompanying drawing explanation
Fig. 1 is the utility model structure diagram, in figure: 1. short mover; 2. long stator; 3. exchange armature winding; 4. DC armature winding; 5. cryostat;
Fig. 2 is the mover containing " recessed " font tooth;
Fig. 3 is that superconduction winding stacks mode;
Fig. 4 is DC excitation winding excitation direction;
Fig. 5 is the magnetic flux switching principle that exchanges armature winding;
Fig. 6 is the structural representation of the utility model embodiment 2.
Embodiment
As shown in Figure 1, the utility model is a kind of complete super linear electric motors, the short mover 1 that this motor comprises double-salient-pole and long stator 2; The iron core of short mover 1 and long stator 2 all adopts domestic conventional D23 material punching to be overrided to form.Winding comprises three-phase alternating current armature winding 3 and double-deck DC excitation winding 4; Described winding is made by Bi-2223 high temperature superconducting materia; A cryostat 5 adopts Dewar, and cryostat 5 can be wrapped in mover motion thereupon.
For alternating supercurrent armature winding 3 and DC excitation winding 4 can be arranged on short stator 1 simultaneously, fluting on short stator 1, the profile of short stator 1 chip is as shown in Figure 2.In the dotted line frame of Fig. 2, the tooth of short stator is processed to down " recessed " font.In the indent of short stator, just DC excitation winding 4 can be installed like this.
As shown in Figure 3, in Fig. 3, alternating supercurrent armature winding 3 is installed in the groove of short mover 1 mounting means of alternating supercurrent armature winding 3 and DC excitation winding 4, for individual layer is concentrated winding; DC excitation winding 4 is arranged on the indent of short stator 1, for bilayer is concentrated winding.Alternating supercurrent armature winding 3 or DC excitation winding 4 all adopt the mode of racetrack, racetrack high temperature superconducting materia winding, and skin has wrapped up insulation and heat sink material, and has rigid support.Can prevent that like this superconducting wire breakage from can also make not have contact between different windings, strengthen the reliability of motor.
Owing to exchanging armature winding 3 and DC excitation winding 4, be arranged on short mover 1, for the magnetic flux that makes to exchange in armature winding 3 can switch, essential correct excitation DC excitation winding 4.Fig. 4 has provided DC excitation winding 4 energisation modes of such complete super motor, under this energisation mode, this full the tooth portion of the short mover 1 of super linear electric motors at the right and left of recess, be divided into the two poles of the earth, on one side magnetic flux make progress, one side magnetic flux is downward.The flow direction of adjacent two teeth is contrary simultaneously.When this complete super linear electric motors operation and Fig. 5 (a) position, the flow direction exchanging in armature winding 3 windings makes progress, when this complete super linear electric motors operation and Fig. 5 (b) position, the flow direction exchanging in armature winding 3 windings is downward, and positive and negative switching has just occurred the magnetic flux exchanging like this in armature winding 3.This execution mode can be applicable to field of track traffic.
In Fig. 6, provided the execution mode two of such complete super linear electric motors.As can be seen from the figure, the present embodiment is substantially the same manner as Example 1.Difference is that alternating supercurrent armature winding 3 now and DC excitation winding 4 are installed on long stator 2.What now this complete super motor moved is the short mover 1 that only has salient-pole structure, and this embodiment is applicable to catapult-launching gear.
Claims (4)
1. a single cryostat super linear electric motors entirely, it is characterized in that, the short mover (1) and long stator (2), winding and the cryostat (5) that comprise double-salient-pole, winding is only distributed in short mover (1) above or is only distributed on long stator (2); Described winding comprises armature winding (3) and excitation winding (4), all adopts high temperature superconducting materia; Described armature winding (3) is by three phase compositions, and described excitation winding passes into constant exciting current in (4); Described cryostat (5) is only wrapped in short mover (1) motion thereupon, or only wraps up long stator (2).
2. a kind of single cryostat according to claim 1 super linear electric motors entirely, is characterized in that, described winding is racetrack, and the material using is y ba cu o compound or Bi-2223.
3. a kind of single cryostat according to claim 1 and 2 super linear electric motors entirely, it is characterized in that, the short mover (1) of described salient pole or each tooth of long stator (2) are " recessed " font, double-deck excitation winding (4) is installed on the tooth of " recessed " font, and it is consistent that the excitation winding (4) on the tooth of same " recessed " font passes into the sense of current; A set of armature winding (3) is installed in adjacent groove.
4. a kind of single cryostat according to claim 3 super linear electric motors entirely, is characterized in that, described cryostat (5) adopts Dewar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320253875.3U CN203434840U (en) | 2013-05-10 | 2013-05-10 | Single-cryostat fully-superconducting linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320253875.3U CN203434840U (en) | 2013-05-10 | 2013-05-10 | Single-cryostat fully-superconducting linear motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203434840U true CN203434840U (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320253875.3U Withdrawn - After Issue CN203434840U (en) | 2013-05-10 | 2013-05-10 | Single-cryostat fully-superconducting linear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203434840U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259383A (en) * | 2013-05-10 | 2013-08-21 | 江苏大学 | Fully superconducting linear motor of single low-temperature retainer |
| CN107800264A (en) * | 2016-09-02 | 2018-03-13 | 费斯托股份有限两合公司 | Linear transverse flux motor |
-
2013
- 2013-05-10 CN CN201320253875.3U patent/CN203434840U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259383A (en) * | 2013-05-10 | 2013-08-21 | 江苏大学 | Fully superconducting linear motor of single low-temperature retainer |
| CN107800264A (en) * | 2016-09-02 | 2018-03-13 | 费斯托股份有限两合公司 | Linear transverse flux motor |
| CN107800264B (en) * | 2016-09-02 | 2021-06-18 | 费斯托股份两合公司 | Linear transverse flux motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140212 Effective date of abandoning: 20151230 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |